CONSOLIDATED BALANCE SHEETS - USD ($) $ in Thousands	Jun. 30, 2016	Dec. 31, 2015
Assets
Fixed maturities, available for sale, at fair value (Amortized cost 2016: $11,475,293; 2015: $11,897,639)	$ 11,563,216	$ 11,719,749
Equity securities, available for sale, at fair value (Cost 2016: $601,320; 2015: $575,776)	626,371	597,998
Mortgage loans, held for investment, at amortized cost and fair value	327,315	206,277
Other investments, at fair value	865,406	816,756
Equity method investments	113,729	0
Short-term investments, at amortized cost and fair value	41,086	34,406
Total investments	13,537,123	13,375,186
Cash and cash equivalents	792,945	988,133
Restricted cash and cash equivalents	200,527	186,618
Accrued interest receivable	71,770	73,729
Insurance and reinsurance premium balances receivable	2,885,606	1,967,535
Reinsurance recoverable on unpaid and paid losses	2,270,776	2,096,104
Deferred acquisition costs	624,638	471,782
Prepaid reinsurance premiums	498,299	396,201
Receivable for investments sold	3,569	26,478
Goodwill and intangible assets	85,954	86,858
Other assets	278,233	313,267
Total assets	21,249,440	19,981,891
Liabilities
Reserve for losses and loss expenses	9,782,304	9,646,285
Unearned premiums	3,708,603	2,760,889
Insurance and reinsurance balances payable	416,017	356,417
Senior notes	992,361	991,825
Payable for investments purchased	144,040	9,356
Other liabilities	241,932	350,237
Total liabilities	15,285,257	14,115,009
Shareholders’ equity
Preferred shares	625,000	627,843
Common shares (2016: 176,575; 2015: 176,240 shares issued and 2016: 90,654; 2015: 96,066 shares outstanding)	2,206	2,202
Additional paid-in capital	2,302,557	2,241,388
Accumulated other comprehensive income (loss)	63,089	(188,465)
Retained earnings	6,285,803	6,194,353
Treasury shares, at cost (2016: 85,921; 2015: 80,174 shares)	(3,314,472)	(3,010,439)
Total shareholders’ equity	5,964,183	5,866,882
Total liabilities and shareholders’ equity	$ 21,249,440	$ 19,981,891